A month ago, you claimed that you deposited money to the wrong address, which later proved that it was not a problem on the site's side, but some malware script from your computer. You never explained what actually happened in that case?
Now you claim your withdrawal went to the wrong address? And you claim that the problem is with freebitco.in this time. Why? It is more likely that your computer is infected again.
I have been using this site for years and years and never had that problem. More then likely, it was his computer. He needs to check his security settings asap or if there are malwares present on his computer. I don't think it is freebitco's site that is compromised. Because if it is, the team should have sent a warning email or announcement to their users already.
Also, upon clicking the button of withdrawal, you will see the address where you will send it to. Is he checking it? Also, someone needs to access his email as the confirmation link is sent on the email address. Unless, he clicked the confirmation link, then, that's his fault because he verified it. And the email is also showing the btc address. So if it is not his address, then, you don't need to click the confirmation link and the transaction will be cancelled and the balance will be returned to your account.
This is the last paragraph of the confirmation email that freebitco will send to your email. So I don't think, freebitco is at fault on this case.